goes in through the top and comes out the bottom
Air enters the body when you inhale (Breathe in) air enters through the mouth and into the lungs. and then exhale (Breathe out) carbon dioxide (CO2)
Oxygen rich air enters the body through the lungs.
you breath it in
lungs
As the diaphragm contracts, air enters the body through the nose and mouth.
nothing, absolutely nothing, nitrogen gas is 70% of the earth's air, it enters our body 30% and goes out 30%.
it goes to the butt
through water mostly, some enters from the air.
h
h
Air, oxygen
it goes to the heart